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Special Section: Recent Advances in Photothermographic Imaging Materials: Papers from the 1998 ICPS
Volume: 43 | Article ID: art00007
Silver Formation, Particle Size Distribution, and Morphology in Photothermographic Systems
  DOI :  10.2352/J.ImagingSci.Technol.1999.43.6.art00007  Published OnlineNovember 1999

Spectroscopic measurements of photothermographic systems at development temperatures show how Ag particles form during the course of the development process. In standard systems, development follows autocatalytic kinetics. Systems containing infectious developers exhibit more unusual kinetics which do not generally fit simple mathematical models. In standard photothermographic systems, Ag particles have a median diameter of approximately 0.065 μm. The median diameter is reduced to 0.028 μm and the particles are generally more spherical in the presence of an infectious developer. Intermediate sizes and morphologies are possible with low levels of infectious development. Particle size and morphology correlates to light absorption and Ag covering power. Standard photothermographic development proceeds sequentially, while infectious development occurs in parallel.

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Mark B. Mizen, "Silver Formation, Particle Size Distribution, and Morphology in Photothermographic Systemsin Journal of Imaging Science and Technology,  1999,  pp 528 - 534,

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Copyright © Society for Imaging Science and Technology 1999
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